Home / 21,762.52-32,686.98-18,641.32

Finding the Fourth Proportional to 21,762.52, 32,686.98 and 18,641.32

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Solution

The fourth proportional to 21,762.52, 32,686.98 and 18,641.32 is: 27,998.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.52 : 32,686.98 = 18,641.32 : x
  2. Step 2: Convert to fraction form
    21,762.52/32,686.98 = 18,641.32/x
  3. Step 3: Cross multiply
    21,762.52x = 32,686.98 × 18,641.32
  4. Step 4: Simplify right side
    21,762.52x = 609,328,454.01
  5. Step 5: Solve for x
    x = 609,328,454.01/21,762.52
  6. Step 6: Final answer
    x = 27,998.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.